﻿using Microsoft.SharePoint.Client;
using System;
using System.Net;

namespace Office365.SharePointOnline.Cmdlets
{
    [System.Management.Automation.Cmdlet(System.Management.Automation.VerbsCommon.Add, "List")]
    public class Add_List : System.Management.Automation.PSCmdlet
    {
        [System.Management.Automation.Parameter(Position = 0, Mandatory = true)]
        public string Url;

        [System.Management.Automation.Parameter(Position = 1, Mandatory = false)]
        public string User;

        [System.Management.Automation.Parameter(Position = 2, Mandatory = false)]
        public string Password;

        [System.Management.Automation.Parameter(Position = 3, Mandatory = false)]
        public string AuthenticationMethod;

        // use only if onpremise authentication
        [System.Management.Automation.Parameter(Position = 4, Mandatory = false)]
        public string Domain;

        protected override void ProcessRecord()
        {
            // check parameters
            ClientContext context = new ClientContext(Url);
            ICredentials credentials;
            Web web = context.Web;
            this.WriteVerbose("Logging on.");
            if (string.IsNullOrEmpty(Url))
            {
                this.WriteObject("Error: url is not set");
            }
            else
            {
                if (!string.IsNullOrEmpty(Password) && !string.IsNullOrEmpty(User))
                {
                    AuthenticationHelper authenticationHelper = new AuthenticationHelper() { AuthenticationMethod = AuthenticationMethod, Domain = Domain, Password = Password, User = User };
                    credentials = authenticationHelper.GetCredentials();
                    if (credentials != null)
                    {
                        context.Credentials = credentials as ICredentials;
                    }
                    else
                    {
                        throw new NullReferenceException("No credentials returned.");
                    }
                }
                else
                {
                    this.WriteVerbose("Reusing existing credentials");
                }

                this.WriteVerbose("Adding List.");
                context.Load(web);
                context.ExecuteQuery();

                AddList(context, web);
            }
        }

        private void AddList(ClientContext context, Web web)
        {
            //Create a List.
            ListCreationInformation listCreationInfo;
            List list;

            this.WriteVerbose("Setting up ListCreateInformation");

            listCreationInfo = new ListCreationInformation();
            listCreationInfo.Title = "testtitle";
            listCreationInfo.Description = "testdescription";

            this.WriteVerbose("Dumping templates");
            var listTemplates = web.ListTemplates;
            context.Load(listTemplates);
            context.ExecuteQuery();

            foreach (ListTemplate template in listTemplates)
            {
                this.WriteVerbose(template.InternalName);
                if (template.Name == "testtemplatename")
                {
                    //ListTemplate listTemplate = web.ListTemplates.First(listTemp => listTemp.Name == "testtemplatename");
                    listCreationInfo.TemplateFeatureId = template.FeatureId;

                    list = web.Lists.Add(listCreationInfo);
                    context.ExecuteQuery();
                }
            }
        }
    }
}
